Re: Simple expression won't simplify

• To: mathgroup at smc.vnet.net
• Subject: [mg48979] Re: Simple expression won't simplify
• From: Paul Abbott <paul at physics.uwa.edu.au>
• Date: Fri, 25 Jun 2004 17:52:22 -0400 (EDT)
• Organization: The University of Western Australia
• References: <cbgjg5\$cfg\$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```In article <cbgjg5\$cfg\$1 at smc.vnet.net>, p at dirac.org (Peter Jay Salzman)
wrote:

>                            m^2
>    sqrt{ a } sqrt{ ------------------- }
>                     m^2 + t^2 a^2 h^2
>
>    ---------------------------------------
>                 m^2   a
>       sqrt{ ------------------- }
>              m^2 + t^2 a^2 h^2
>
>
> How do I coax Mathematica to admit this expression is 1?

Simplify[(Sqrt[\[Alpha]]*Sqrt[m^2/(m^2 + t^2*\[Alpha]^2*\[HBar]^2)])/
Sqrt[(m^2*\[Alpha])/(m^2 + t^2*\[Alpha]^2*\[HBar]^2)], \[Alpha] > 0]

Cheers,
Paul

--
Paul Abbott                                   Phone: +61 8 9380 2734
School of Physics, M013                         Fax: +61 8 9380 1014
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Crawley WA 6009                      mailto:paul at physics.uwa.edu.au
AUSTRALIA                            http://physics.uwa.edu.au/~paul

```

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